Chaos-based block ciphers: An overview

In recent years, the chaos based cryptographic algorithms have enabled some new and efficient ways to develop secure image encryption techniques. In this paper, we propose a new approach for image encryption based on chaotic maps in order to meet the requirements of secure image encryption. The chaos based image encryption technique uses simple chaotic maps which are very sensitive to original conditions. Using many chaotic maps which works based on simple substitution and transposition techniques to encrypt the original image yields better performance with less computation complexity which in turn gives high crypto-secrecy. The initial conditions for the chaotic maps are assigned and using that seed only the receiver can decrypt the message. The results of the experimental, statistical analysis and quantitative tests show that the proposed image encryption scheme provides an efficient and secure way for image encryption.

show abstract

“…… (12) where and are the plain image and cipher image respectively. and are the width and height of the image respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Logistic maps are used to create round keys for the DES algorithm. The chaotic map used in Assad et al, 2014 [12] is a tent map for production of S-box and Arnold's map for permutation of pixels.…”

Section: Related Workmentioning

confidence: 99%

Locally Applied Mixed Chaotic Maps based Encryption for High Crypto Secrecy

Arivazhagan¹,

Jebarani²,

Kalyani³

et al. 2017

IJERT

View full text Add to dashboard Cite

show abstract

“…Cryptography as the art of science that is more recently considered as a branch of both computer science and mathematics [1], can be utilized as a useful scientific approach to provide image's security, confidentiality and integrity via the research of designing an efficient image encryption scheme that can make a good compromise between satisfactory level of security and execution time, these purposes can't be accomplished with the direct use of traditional encryption algorithms [2] such as DES [3], IDEA [4], AES [5] that mark their unsuitability for encrypting digital images [6] due to their intrinsic features like bulk data capacity, large data size, high redundancy and strong correlation of adjacent pixels in addition to the large computational time. In this paper, a complete study of some recent and prevalent proposed schemes in the literature are presented in detail, this study puts a focus on analyzing each work by giving its advantages and limitations in terms of security level and execution time.…”

Section: Introductionmentioning

confidence: 99%

A Review on Different Image Encryption Approaches

Souyah

Faraoun

2016

Modelling and Implementation of Complex Systems

View full text Add to dashboard Cite

The design of image encryption schemes that make a good compromise between sufficient level of security and execution time is one of the main directions of research, due to their ever-increasing use in real-time Internet image encryption and transmission applications. For such task, a variety of mathematical and biological strategies are investigated in the literature as chaos theory, cellular automata and DNA computing. The intend of this paper is to present a complete study of some recent and prevalent proposed works in the literature, this study covers the analysis of each work by giving its advantages and limitations in terms of security level and execution time. We believe that our study within this contribution will help in the design of new secure crypto-systems for image encryption.

show abstract

“…Research has shown that chaos systems are extremely sensitive to the changes of control parameters and initial conditions. They have pseudo-random behavior for nonauthorized parties [Akhshani et al, 2012;El Assad et al, 2014;Kassem et al, 2014;Chiaraluce et al, 2002;Chen et al, 2004;Behnia et al, 2008;Wang et al, 2013;Chang, 2009]. Experimental results show that the chaos-based encryption algorithm can overcome security issues in efficient and adaptive ways compared to the classical encryption ones (such as DES and AES) [Abd El-Latif et al, 2012;Furht & Socek, 2003;Li et al, 2006;Bhargava et al, 2004;Mansour et al, 2012;Bhatnagar & Jonathan Wu, 2012].…”

Section: Introductionmentioning

confidence: 99%

Fast and Secure Chaos-Based Cryptosystem for Images

Farajallah

Assad

Déforges

2016

Int. J. Bifurcation Chaos

View full text Add to dashboard Cite

Nonlinear dynamic cryptosystems or chaos-based cryptosystems have been attracting a large amount of research since 1990. The critical aspect of cryptography is to face the growth of communication and to achieve the design of fast and secure cryptosystems. In this paper, we introduce three versions of a chaos-based cryptosystem based on a similar structure of the Zhang and Fridrich cryptosystems. Each version is composed of two layers: a confusion layer and a diffusion layer. The confusion layer is achieved by using a modified 2-D cat map to overcome the fixed-point problem and some other weaknesses, and also to increase the dynamic key space. The 32-bit logistic map is used as a diffusion layer for the first version, which is more robust than using it in 8-bit. In the other versions, the logistic map is replaced by a modified Finite Skew Tent Map (FSTM) for three reasons: to increase the nonlinearity properties of the diffusion layer, to overcome the fixed-point problem, and to increase the dynamic key space. Finally, all versions of the proposed cryptosystem are more resistant against known attacks and faster than Zhang cryptosystems. Moreover, the dynamic key space is much larger than the one used in Zhang cryptosystems. Performance and security analysis prove that the proposed cryptosystems are suitable for securing real-time applications.

show abstract

Chaos-based block ciphers: An overview

Cited by 23 publications

References 6 publications

Locally Applied Mixed Chaotic Maps based Encryption for High Crypto Secrecy

Locally Applied Mixed Chaotic Maps based Encryption for High Crypto Secrecy

A Review on Different Image Encryption Approaches

Fast and Secure Chaos-Based Cryptosystem for Images

Contact Info

Product

Resources

About